AWS SDK Version 3 for .NET
API Reference

AWS services or capabilities described in AWS Documentation may vary by region/location. Click Getting Started with Amazon AWS to see specific differences applicable to the China (Beijing) Region.

Specifies the conditions under which data should be updated. If an update condition is specified for a request, the data will only be updated if the condition is satisfied. For example, if an attribute with a specific name and value exists, or if a specific attribute doesn't exist.

Inheritance Hierarchy


Namespace: Amazon.SimpleDB.Model
Assembly: AWSSDK.SimpleDB.dll
Version: 3.x.y.z


public class UpdateCondition

The UpdateCondition type exposes the following members


Public Method UpdateCondition()

Empty constructor used to set properties independently even when a simple constructor is available

Public Method UpdateCondition(string, string, bool)

Instantiates UpdateCondition with the parameterized properties


Public Property Exists System.Boolean

Gets and sets the property Exists.

A value specifying whether or not the specified attribute must exist with the specified value in order for the update condition to be satisfied. Specify true if the attribute must exist for the update condition to be satisfied. Specify false if the attribute should not exist in order for the update condition to be satisfied.

Public Property Name System.String

Gets and sets the property Name.

The name of the attribute involved in the condition.

Public Property Value System.String

Gets and sets the property Value.

The value of an attribute. This value can only be specified when the Exists parameter is equal to true.

Version Information

.NET Standard:
Supported in: 1.3

.NET Framework:
Supported in: 4.5, 4.0, 3.5

Portable Class Library:
Supported in: Windows Store Apps
Supported in: Windows Phone 8.1
Supported in: Xamarin Android
Supported in: Xamarin iOS (Unified)
Supported in: Xamarin.Forms